Atomizer or pump-sprayer.



No. 842,097. PATENTED JAN. 22, 1907;

. E.'A.JAHN.

ATOMIZER 0R PUMP SPRAYER.-

APPLICATION FILED JULY 16. 1906.

Inventor, a 'flm'est H.

Witnesses. Q 5.

' UNITED s'rArEs PATE T OFFICE.

ERNEST ADOLPH JAHN, or LONDON, ENGLAND,

ATOMIZER PUMP-SPRAYER.

Specification of Letters Patent.

Patented J an. 22, 1907.

Application filed July 16,1906- Serial No. 326,501.

' T aZZ whom it may concern.-

Be it known that I, ERNEST ADOLPH JAHN,

a subject of the King of England, of the firm of Thomas Christy and Company, residing at 4, 10, and I2 Old Swan Lane, Upper Thames street, in the city of London, England, have invented new and useful Improvements in or Relating to Atomizers or Pump Sprayers, of which the following is aspecification.

My invention relates to improvements in atomizers or pump-Sprayers for use for spraying scent and the like. The pump is of the well-known" type wherein a piston controlled by a spring works in a cylinder, the upper.

'partof which is attachedto or formed with a metal body or chamber, this body or chamber'being fitted into a receptacle of glass or other suitable material.

With sprays of the kind as hitherto constructed the cylinder is fitted at the bottom with a valve to prevent the air or perfume flowing back into the cylinder when the piston is raised for a fresh str'oke.- This valve is protected by a small hollow cap which is screwed onto the cylinder and provided with a hole in the center to allow the air to pass into the receptacle, or in some cases the air-;

outlet valve is dispensed with and an outletpassage is provided sufficiently small to pre-' vent any serious sucking back of the air through-this outlet. A small tube, of metal or other suitable material, is attached to the" outside of the cylinder and passes through the metal body and is connectedat the top with a nozzle screwed or fitted onto the outside ;of the body, so that when the piston is pressed down and suflicient pressure is produced on the surface of the liquidthe same is forced up through the aforesaid small tube and issues from the nozzle in the form of a spray. To prevent leakage, the point of the nozzle is provided with a screw-cap.

Various defects have been noticed in pumpsprays constructed asdescribed. For 'instance, the valve-hole in the before-mentioned cap has proved unsatisfactory, as a certain My invention is designed to obviate these drawbacks. I first of all do away with the hole in the center of the cap and provide a assage in the wall of the cylinder opening out into the air-space and so giving the air free outlet from the cylinder-valve though preventing theliquid in the receptacle reaching the valve. To prevent leakage of the nozzle,

I alter its construction as follows: In the ordinary form of pump-spray the top of the piston-rod is fitted with a circular top plate" which when the piston is pushed down fits into the metal body of the pump. The piston-rod being provided to within about oneeighth of an inch of the to plate with two.

vertical guides fitting into t e cylinder-cover enables the pump to be'locked by a slight turn of the said top late. This top plate I replace by a flanged ood fitting over the top of the spray. The flange may be provided with an o ening and slot fitting over the nozzle, whicii in my invention is put back to about one-eighth ,of an inch from the outer diameter of the s ray or pump. The slot is soarranged that esides covering the nozzle (so as to prevent its tearing the linings of dressing-bags, &c.) it also closes the hole in the nozzle and renders it air-tight, thus preventing all chanceof leakage. The closing can be eflected bylining the slot with a soft metal or any other suitable material, making same slightly-eccentric to insure a lasting fit, and in order thatthis invention may-be bett er understood I will now proceed to describe the same with reference to the drawings accompanying this specification, .in

which- Figure 1 is an elevation of a pump-spray made according to my inventionwith the hood or cover closed. Fig. 2 is an elevation of same with the'hood or'coverop'enj Fig. 3 is ,a vertical section in a, plane passing through'the small delivery-tube with the.

hood closed. Fig. tie a vertical section in a plane at right angles to the plane of section in Fig.3 with the hood open.

The same letters of reference are employed to denote the same parts in all the views.

The pump-spray is in general construction of a well-known type, and consequently it is unnecessary to go into-minute details of such construction. I

a is the receptacle, of glass or other suitable material, provided 3 with a collar 6, onto which the body 0 screws in the ordinary way,

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suitable washer (I being interposed to make a liquid-tight joint. The body 0 has attached to or formed therewith a cylinder e,

forming the ,ylinder of the pump. This pump is of the ordinary constructionin pump-sprays of the kind; I I

f is the piston,in which is the usual pistonvalve."

g is a helical springresting on the seating h, which is provided witha hole j,'furnished with the usual valve. k is the small tube leading from the liquid in the receptacle (1 to the nozzle.-

It will be seen that the body 0 is so formed that there'is an annular chamber m around the cylinder 6. This chamber is provided with a number of holes n, which open from t into the receptacle c. The top 0 of the pi e k passes into the'nozzle p in such a way that air can find its way from the chamber m and be supplied around the end 0 of the said tube k as'the scentis delivered.

Referring now to the details of construction which constitutethe'features of my resent invention, in place of the valve-ho eat the bottomof the cylinder or in place of the capillary tube leading to the chamber m various holes 92, and apressure is produced on the top of the liquid in the receptacle 0. Consequently the liquid is forced up the tube 7c and. delivered through the orifice cat the same time a portion of the compressed air finds its way around'the aperture m and mixmg with the scent from the orifice at 0 the scent is'd'elivered in the form of a fine spray.

from the nozzlep In place of the top plate I provide a flanged hood 1), the flange of which .is provided with an opening and slot a. It will be seen that when the hood u is pushed down the slot comesov'er the nozzle p, and when the hood is rotated the nozzle is closely'covered by the slot, which may be provided with soft metal or other suitable material to keep it tight. The guides to, which when the cap is rotated take under the plate z assist in keeping the hood 0 locked.

In some cases I may place thenozzle p below the flange of the hood when closed, where it is not desired to use the hood for the purpose of covering the nozzle, and I may in that case rely solely on the guides for keeping the hood closed, or I may provide suitable bosses taking into one or more openings or slots in the flanged hood for the purpose of keeping sameplosed.

It is obvious that, if desired, more than one passage 11 can be provided in the walls of the cylinder e. 7

What I claim, and desire to secure by Letters Patent of the United States of-America, 1s'- i l. An a pump of ordinary construction the lower end of the cylinder of which opens into a atomizer or pump-spray comprising chamber closed at the bottom, such chamber with the receIpxtfacle containing the scent to also when. desired with the be sprayeda pump all for the purposes set' nozzle of theforth;

2. The combination with an atomizer or i pump-spray of a flanged hood attached to the top of the piston or plunger rod, such hood being preferably so formed as to cover and lock over the nozzle of the pump when thehood is in the closed position for the purposes set forth.

3. In an :atomize'r or pump-spray; the

combination with the cylinder, of a plunger operating therein, an aperturcd plate ar 9 5 ranged at the upper end of said cylinder and forming a guide for said plunger, a flanged hood attached to the'top of said pl unger, looking means carried by said cap and locking means carried by said plunger, substantially as described.

4. In an atomizer or pump-spray, the combination with the cylinder, of a plunger operating therein, an apertured' plate arranged at the upper end of said cylinder and forming a guide for said plunge r, a flanged hood attached-to the top of said plunger, a fluid-discharge tube, a nozzle arranged at the discharge end of said tube, said hood being provided with a recessed portion adapted to be thrust overand to look upon said nozzle, substantially as described.

5. In an atomizer or pump-spray, the combination with the cylinder, of a plunger operating therein, an aperturcd plate arranged'at the upper end of said cylinder and forming a guide for said plunger, a flanged hood attached to the top of said plunger, a fluiddischarge tdbe, a nozzle arrangedat the discharge end of said tube, said hood being provided with a recessed portion adapted to be thrust over and to lock said nozzle, and looking means carried by said plunger, substantially as described.

6. In an atomizer or pump-spray, thecombination with the cylinder, of a plunger operating therein, said cylinder opening into a closed chamber at the lower end thercgfi, an annular air-ch amber formed around the upper end of said cylinder, air-passages leading from said air-chamberto the liquid-container, adapted to be thrust oversaid nozzle and Y0 an air-duct formed in the Wall of said cyllocked thereon, substantially as described. inder and communicating between said In testimony whereof I ai'lix my signature closed chamber and said air-Chamber, a fluidin presence of two witnesses. discharge pipe having its discharge end located in said air-chamber, a nozzle formed ERNEST ADOLPH JAHN' on said discharge end, a flanged hood at- Witnesses: 1 tached to the upper end of said plunger, said I LIONEL E. TOWNROE,

hood being provided with a recessed portion W MANNING. 

